print('hello python')
print("hello bit")
print('努力学习','为梦想拼搏!!!')
a=60
b=80
print(a*b)
print(a/b)
print(a+b)
print(a-b)
print(a*b,a/b,a+b,a-b)
print(8)
print(chr(65))
print(str('c'))
print('北京'+'南京')
print('hello',end='----->')
print('hello',end='\n')
